If you get the flood message, it means your post has posted. Even if it appears that it hasn't. More often that not it will stay on this page (where you write your message). If you get the flood message, click on view discussion in pop up and you should be able to see that your post has actually gone through. You can then hit the back button.

The log out problem has been a major issue for the last few days, but seems to be working OK at the moment.

Working for me too now, but had to do the PIN number verification as it thought I was on a different PC as cookies were cleared. Now to solve the HTML error here. Still getting the Flood error regardless how many times I push POST button and it's not posting either.